2016年12月英语四级阅读答案：试卷二（沪江网校版）
Section A26. challenges
27. searched
28. categorizing
29. similarities
30. slightly
31. percentage
32. traditional
33. regardless
34. proving
35. suggests
Section B
36. It is possible for burglars to make jamming attacks with the necessary equipment and skill.
37. Interfering with a wireless security system is similar to interfering with a conversation.
38. A burglar has to continuously jam the wireless security device to avoid triggering the alarm, both inside and outside the house.
39. SimpliSafe provides devices that are able to distinguish incidental radio interference from targeted jamming attacks.
40. Only a very small proportion of burglaries are committed by technical means.
41. It is difficult to crack SimpliSafe as its system keeps changing.
42. Wireless devices will transmit signals so as to activate the alarm once something wrong is detected.
43. Different measures should be taken to protect one's home from burglary in addition to the wireless security system.
44. SimpliSafe's device can send a warning to the house owner's cellphone.
45. Burglars can easily get a security device's frequency by Internet search.
Section C
Passage One
46. He intends to get rid of the tipping practice.
47. It adds to the burden of ordinary customers.
48. They can have some say in how much their servers earn.
49. Service quality has little effect on tip size.
50. Waiters should be paid by employers instead of customers.
Passage Two
51. The impact of cheap oil on global economic growth.
52. Consumers will spend their savings from cheap oil on other commodities.
53. They use their money reserves to back up consumption.
54. Its negative effects more than cancel out its positive effects
55. People are not spending all the money they save on gas.
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